Electronics-Inductors Question and Answer

Electronics-Inductors Question and Answer
71. When a load is not connected to the secondary of a transformer:
  • primary current is zero
  • primary current is inversely proportional to primary impedance
  • secondary voltage is zero
  • secondary voltage is proportional to primary impedance
Show Answer
72. The primary winding of a transformer is the side connected to the load.
  • TRUE
  • FALSE
Show Answer
73. An air-core inductor has a metal core.
  • TRUE
  • FALSE
Show Answer
74. The time constant of an inductive circuit is dependent on the circuit's resistance.
  • TRUE
  • FALSE
Show Answer
75. The amount of dc current that an inductor will allow to pass depends on the circuit's total resistance that is in series with it.
  • TRUE
  • FALSE
Show Answer
76. An inductor will boost current flow.
  • TRUE
  • FALSE
Show Answer
77. A step-up transformer will have a turns ratio greater than 1.
  • TRUE
  • FALSE
Show Answer
78. The secondary current in a transformer depends on the secondary voltage and load resistance values.
  • TRUE
  • FALSE
Show Answer
79. Kirchhoff's voltage law does not apply to series RL circuits.
  • TRUE
  • FALSE
Show Answer
80. Magnetic force is the force that produces a magnetic field.
  • TRUE
  • FALSE
Show Answer
Electronics
Questions and Answers for Competitive Exams Various Entrance Test